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79828030 = 2513216043
BaseRepresentation
bin1001100001000…
…01010000111110
312120012200110201
410300201100332
5130413444110
611530554114
71656345532
oct460412076
9176180421
1079828030
1141073a87
122289893a
1313700029
14a85dbc2
15701cb3a
hex4c2143e

79828030 has 16 divisors (see below), whose sum is σ = 143823024. Its totient is φ = 31901760.

The previous prime is 79828027. The next prime is 79828031. The reversal of 79828030 is 3082897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79828031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10189 + ... + 16231.

It is an arithmetic number, because the mean of its divisors is an integer number (8988939).

Almost surely, 279828030 is an apocalyptic number.

79828030 is a deficient number, since it is larger than the sum of its proper divisors (63994994).

79828030 is a wasteful number, since it uses less digits than its factorization.

79828030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7371.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 79828030 is about 8934.6533228772. The cubic root of 79828030 is about 430.5779680660.

The spelling of 79828030 in words is "seventy-nine million, eight hundred twenty-eight thousand, thirty".

Divisors: 1 2 5 10 1321 2642 6043 6605 12086 13210 30215 60430 7982803 15965606 39914015 79828030